shamp



(No Model.) 2 Sheets-Sheet 1.

G. W. SHAMP.

ROLLER SKATE. No. 340,957. Patented Apr. 27, 1886.

Witnesses Inventor flttorney N4 PETERS mm-uuw n har. Wnhin mn, D. C.

(No Model.) 2 Sheets-Sheet 2.

. G. W. SHAMP.

ROLLER SKATE.

No. 340,957. Patented Apr. 27, 1886.

Inventor? 6 -11% 60 flttorney.

UNITED STATES PATENT OFFICE.

GEORGE W. SHAMP, OF BUFFALO, NEWV YORK, ASSIGNOR TOTHE S. 8t L. MANUFACTURING COMPANY, OF SAME PLACE.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 340,957, dated April 27,1886.

Application filed May 25, 1885.

T 0 aZZ whom it may concern.-

Be it known that I, GEORGE W. SHAMP, a a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Roller-S]; ates; and I do here by declare the following to be a full, clear, and exact description of theinvention,such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and

to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates more particularly to certain improvements in that class of rollerskates which'have springs seated in the frame, such springs adjustable at one end as to tension and pressing against the bearing of the rollers at the other end.

The object of my invention, primarily, is to provide such a construction of parts that the spring will at all times exert a pressure in a direct line with the longitudinal axis of such spring; and to that end it consists in interposing between the bearing of the rollers and spring a hinged backing-plate, so arranged that it can only move in a plane parallel with the longitudinal axis of the spring as the roller-bearing turns to either side.

My invention further consists in anadj ustable toe-clamp, and in certain details of construction of these'various parts, which will be more particularly hereinafter described and claimed.

In the drawings, Figure 1 is a side elevation, partly in section, of my improved skate. Fig. 2 is an enlarged side elevation of the rear end of the skate. Fig. 3 shows my adjustable heelguard. Fig. 4 is an under side view of my adjustable toe-clamp, and Figs. 5, 6, 7, 8, and 9 are views of detached detail parts.

Referring to the drawings, it will be seen that the frame of my skate consists of the narrow bar (1, having on its under side the strengthening-rib a and at its front end the broad toe-plate a. Under this toe-plate a and. also under the rear end of the bar a, are the inclined barrels or sockets a adapted for the reception of the springs. Below the bar- Scrial No. 166,584. (No model.)

rels a and ina line at right angles to the axis of the barrels, are the hangers a a Just above the hanger a, and on the inside, is the transverse recess or seat a, formed by the inwardly-projecting flange or ridge (1 In the rear of the barrel a, at the rear end of the frame, is the upwardly projecting arm a adapted for the reception of the rear end of the heel-plate, and leaving the space a for the passage of the heel-strap.

All of the parts just named are cast in one piece, and form a light and rigid frame-work for the reception of the other parts which go to form the complete skate.

The backingplate (see Figs. 1, 2, 6, and 7) consists of the frame I), having the circular re cess or socket 1) upon its upper side, for the reception of thelower end of the spiral spring. Backof this socket b is the bearing b", (see Figs. 6 and 7,) having on either side the broad wings 5*, extending above and below the hearing 0 At the other end of thebacking-plate are the two narrow wings I) b, one on each side.

In Figs. 1 and 2. and more particularly Figs.

8 and 9, is shown the bearing-carrier,by means of which the rollers are secured to the skate, in which 0 is the sleeve, adapted for the re ception of the axle c, on which the rollers are mounted. At right angles to this sleeve, and cast integral with it, is the sleeve 0 adapted for the reception of the axle 0 the ends of which are pivoted in the frame-hangers a a Across the upper side of the sleeve 0', and integral therewith, is thewedgeshaped plate 0', having the beveled side edges, 0

Before securing the rollers d to the framehangers a a by means of the carrier just described, the backing-plate b is secured in position by placing the bearing 7) within the recess or seat a of the frame, the wings b b and b 1) bearing loosely against the sides of the frame. The sleeve 0 with its wedge-shaped plate 0* bearing against the hacking-plate b, is then pivoted in the hangers a a by means of the axle c, as before described. The spiral spring e-is then placed within the barrel or socket a its lower end resting in the recess b of the backing-plate, andits upper end being the backing-plate b.

held within the barrel by the screw 6, which also serves to regulate its tension upon the backing-plate Z); The skate thus arranged operates substantially as follows: \Vhen a curve is being turned by the skater,the sleeve 0 turns in its hangers a a and its wedge-shaped plate a bears either on one side or the other of the hinged backing-plate b, causing such backingplate to be slightly revolved in the arc of a circle, the center of which is the recess or socket a in the frame a, such revolution being in a plane parallel with the longitudinal axis of the spiral spring 6, the movement in such plane being rendered always accurate by means of the guiding-wings b b and b b of In this way it will be observed that the compression of the spiral spring must necessarily be in the direction of its longitudinal axis, thereby causing no undue lateral strain upon such spring, and, in addition, giving to such spring itsfull and unrestrained effect in restoring to the different parts their normal position.

In Fig. lthe heel-plate f is shown riveted to the frame a; but, in order to accommodate the skate for ladies wear, where shoes are worn with very sloping heels, I have provided an adjustable heel-plate adapted to my improved form of skate, which is clearly shown in Fig. 3, in which 9 is the plate, provided with the usual rail or guafi. g g are long narrow slots on either side of such plate, and g g are clamping-screws passing through such slots and into the frame a, thereby enabling the heel-plate g to be secured in any position within the limit of such slots. A central elongated slot, 9, in such plate allows for the ad justment of the screw c in any position of the plate g.

My improved toe-clamp (shown in Figs. 1 and 4) is arranged as follows: Upon the under side of the toe-plate a near its outer end, is loosely pivoted, at the points Z Z, the metallic plates Z and Z, the inner ends of which are provided with the engaging segmental gearing Z Z and the outer ends of which have the upright lugs Z, (see Fig. 1,) which engage with the edge of the sole of the shoe. The plate Z has the arm Z at the outer end of which is the screw-threaded socket Z, in which the Screw Z is adjusted. The plate Z has the arm Z against which the end of the adj usting-screw Z abuts.

By moving the adjusting-screw Z back and forth in the socket Z the toe-clamp just described can be adjusted so as to adapt it to different-sized shoes.

I claim 1. In a roller-skate, the combination, with the bearing for the rollers, and with the spring, of a hinged backing-plate acted upon by the spring and in contact with the bearing, substantially as shown and described.

2. In a roller-skate, the combination, with the bearing for the rollers and with the spring, of the hinged backing-plate, having the frame I), the socket b for the spring, the end wings, b b and b b", and the bearing b, adapted to operate within the recess or socket a of the skate-frame, substantially as shown and described.

3. In a roller-skate, in combination, the spiral spring 6 and adjusting-screw e, both seated within the barrel a of the skate-frame, the backing-plate I) b, with its wings I) b and b 12*, and bearing b", adapted to rest loosely and turn in the socket a of the skate-frame a, and the bearing or carrier having the sleeve 0, the wedge-shaped plate 0', which rests against the backing-plate b, and the sleeve 0, adapted to receive the axle 0, upon which the rollers d turn, all arranged substantially as shown and described.

4. Ina roller-skate, the toe-clamp, consist ing of the plates Z and Z having at their inner ends the engaging segmental gearing Z Z and at their outer ends the upright lugs Z Z, the plate Z, having the arm Z with socket Z, and adjusting-screw Z and theplateZZhaving the arm Z against which the screw Z abuts, all arranged and operating substantially as shown and described.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE WV. SHAMP.

Witnesses:

D. O. SHAMP, W. T. MILLER. 

